The whole business of risk caused by pax grabbing cabin bags before leaving is a real issue and probably should be laid at the door of the bean counters who, as someone said, are addicted to the baggage revenue stream, despite the very real safety issues. Whatever the airline publicity may say, these bureaucrats really are NOT focused on safety as are the people who have to fly the aircraft day in day out !
The really lucky thing about this incident is that the engine exploded BEFORE the plane was in the air.